How does granularity change effect existing buckets?

Hey,

I wanted to know, what changes are implied internally if I change the granularity from seconds to minutes for an already existing time series collection with documents?

Also, how the internal buckets are updated:

  • does the old buckets get deleted which were created with granularity ‘seconds’ and new once generated with granularity ‘minutes’?

cc: @Michael_Gargiulo @Geert_Bosch